As a follow up concerning resources, there are often common questions asked in the forums or areas of coin collecting where checking some basic references related to that first can be very helpful or answer questions some may have. It is also useful to have a general list of basic online resources related to coin errors and varieties, which are popular topics.  In addition, if coin collecting is a hobby you wish to pursue a copy ot the latest "Red Book" and "ANA Grading Standards" are neces